It's a matter of standards.

Evidently, there was an op-ed piece in the newspaper regarding the current trend of people wearing their pajamas on jaunts to Wal-Mart, the gas station, etc. I missed it, but I did see the responses to it. 

Pamela Dugger of Duncanville takes issue with the writer of the op-ed. She says that people who work odd shifts want to wear their comfortable clothes when they get home, and they don't want to change if they need to go to the store for something. She says that the pajamas are much more proper than jeans puddling around the ankles.

So, Pamela, what if people are most comfortable running around in their underwear when they get home? Maybe those people don't want to "get dressed up" to go to the store, either. And underwear is much more proper than going nude! It comes down to standards. Pajamas are meant to be worn at home . . . not to go shopping. Looking better than the jeans hanging below the buttocks doesn't make them "proper attire." Look at it this way: That man is a rapist, but that's OK -- it's certainly more proper than him being a murderer. No, it's not proper for him to be a murderer, but it's certainly not proper for him to be a rapist, either. It's all about standards -- either you have them, or you don't.

"Pajamas as attire." The Dallas Morning News; February 17, 2012; p. 14A.